Re: [PATCH v9 for Xen 4.7 3/4] libxl: enable per-VCPU parameter for RTDS

[Wei Liu <wei.liu2@citrix.com>]

On Thu, Mar 31, 2016 at 11:59:45PM -0500, Chong Li wrote:
> Add libxl_vcpu_sched_params_get/set and sched_rtds_vcpu_get/set
> functions to support per-VCPU settings.
> 
> Signed-off-by: Chong Li <chong.li@wustl.edu>
> Signed-off-by: Meng Xu <mengxu@cis.upenn.edu>
> Signed-off-by: Sisu Xi <xisisu@gmail.com>
> 
> Acked-by: Wei Liu <wei.liu2@citrix.com>

This should have been dropped.

> Reviewed-by: Dario Faggioli <dario.faggioli@citrix.com>
> ---
> Changes on PATCH v8:
> 1) Add libxl_vcpu_sched_params_get_all() and
> sched_rtds_vcpu_get_all() to output all vcpus of a domain.
> 
[...]
>  
> +int libxl_vcpu_sched_params_get(libxl_ctx *ctx, uint32_t domid,
> +                                libxl_vcpu_sched_params *scinfo)
> +{
> +    GC_INIT(ctx);
> +    int rc;
> +
> +    scinfo->sched = libxl__domain_scheduler(gc, domid);
> +
> +    switch (scinfo->sched) {
> +    case LIBXL_SCHEDULER_SEDF:
> +        LOG(ERROR, "SEDF scheduler is no longer available");
> +        rc = ERROR_FEATURE_REMOVED;
> +        break;
> +    case LIBXL_SCHEDULER_CREDIT:
> +    case LIBXL_SCHEDULER_CREDIT2:
> +    case LIBXL_SCHEDULER_ARINC653:
> +        LOG(ERROR, "per-VCPU parameter getting not supported for this scheduler");
> +        rc = ERROR_INVAL;
> +        break;
> +    case LIBXL_SCHEDULER_RTDS:
> +        rc = sched_rtds_vcpu_get(gc, domid, scinfo);
> +        break;
> +    default:
> +        LOG(ERROR, "Unknown scheduler");
> +        rc = ERROR_INVAL;
> +        break;
> +    }
> +
> +    GC_FREE;
> +    return rc;
> +}
> +
> +int libxl_vcpu_sched_params_get_all(libxl_ctx *ctx, uint32_t domid,
> +                                    libxl_vcpu_sched_params *scinfo)
> +{
> +    GC_INIT(ctx);
> +    int rc;
> +
> +    scinfo->sched = libxl__domain_scheduler(gc, domid);
> +
> +    switch (scinfo->sched) {
> +    case LIBXL_SCHEDULER_SEDF:
> +        LOG(ERROR, "SEDF scheduler is no longer available");
> +        rc = ERROR_FEATURE_REMOVED;
> +        break;
> +    case LIBXL_SCHEDULER_CREDIT:
> +    case LIBXL_SCHEDULER_CREDIT2:
> +    case LIBXL_SCHEDULER_ARINC653:
> +        LOG(ERROR, "per-VCPU parameter getting not supported for this scheduler");
> +        rc = ERROR_INVAL;
> +        break;
> +    case LIBXL_SCHEDULER_RTDS:
> +        rc = sched_rtds_vcpu_get_all(gc, domid, scinfo);
> +        break;
> +    default:
> +        LOG(ERROR, "Unknown scheduler");
> +        rc = ERROR_INVAL;
> +        break;
> +    }
> +
> +    GC_FREE;
> +    return rc;
> +}
> +

These two functions LGTM, so I shall ack this patch again:

  Acked-by: Wei Liu <wei.liu2@citrix.com>

Wei.

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